
Dogue de bordeaux's do not really fill out untill they mature, that can be any time between 18 months to 3 years, as do a lot of large breed dogs. Britney my dogue de bordeaux bitch is 2 and very mature and began to fill out when she was about 18 month, now at 2 I would say that she has just finished growing, but is now filling out width ways, but the male, was a year old on the 1st April and he is lean, I feed him on Burns dog food,and spice it up a bit with green tripe and supplimented with chicken wings, as Burns I find with my lot will not pile weight on them, but gives a good diet, to build on untill he matures, I would worry more if he was heavy biult at this age, I have just noticed in the last month that he is getting broader in his chest and growing into his head, but I would not worry or try to put weight on him to early as the bones are still soft and by putting weight on him early you could harm his hips or cause his legs to bow, at 11 months you dogue is still a baby if you give him a good quality diet, he will fill out in his own time. Different lines seem to mature quicker than other's with bordeaux, so as long as he is healthy and not been over excercised,with the right diet he will fill out in his own time.If you join and do a search there is a wealth of information on different types of feeding which may suit your dog better.